New SQL syntax quick manual!

Today, I'd like to share with you a report of a factory organized by a big man SQL A complete grammar of English , It contains two books ：《SQL Basic knowledge of 》 and 《SQL Advanced knowledge 》.

And others SQL What's different about books is , This 《SQL Complete grammar 》 Not only SQL All about basic and advanced grammar , And there are explanations of the various grammars 、 A lot of examples and comments and so on , It's very easy to understand , It's convenient for everyone to practice together .

SQL In the basic section, press SQL The underlying execution logic begins to explain each knowledge point , Limited to space , Part of the screenshot example ：

The basic chapter also sorts out some commonly used functions , Data types and so on

Next is SQL A short introduction to the advanced chapter , We talked about temporary tables 、 Derived tables 、 stored procedure 、 dynamic SQL Wait for the knowledge , Space limit , Part of the content shows ：

For example, row to column is often used in work （ It's also a common question in the interview ）, From Case When Start the comparison between the new method and the general method ：

To window function 、 Variable 、 Recursion is also explained in great detail ：

Now? ,《SQL Basic knowledge of 》 and 《SQL Advanced knowledge 》 The HD ebook has been packed , It can be obtained by the following steps .

1、 Long click the official account below ：SQL Database development ( Non current number )

2、 Backstage reply key words ：SQL20

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